Abrasive disc base



FIG. 1 is a perspective top view of an abrasive disc base showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front view thereof, the rear being a mirror image; and,

FIG. 5 is a side view thereof, the other side being a mirror image. 

The ornamental design for an abrasive disc base, as shown and described. 